Attachment for machines for coating material



P 1929- w. H. B'ERSSENBRUGGE 1,727,929

' ATTACHMENT FOR MACHINES FOR COATING MATERIAL Filed Feb. 28. 192'! 6/!am @rJscn/am i with the front plate sectioned off, such view PatentedSept. 10,

UNITED STATES PATENT OFFICE.

ATTACHMENT FOE KACHINES FOR COATING MATERIAL.

Application filed. February 28, 1927. Serial No. 171,660.

This invention relates to an attachment for a machine for coatingmaterial.

In machines for coating strips andmaterial of other shapes with lacquer,varnish, shellac, or other material, it is the usual practice to providea wiper composed of a solid block of rubber initially contouredto fitthe strip. The rubber block very rapidly wears as the work is. passedthrough the machine and very soon fails to function properly with aconsequent great waste of lacquer or other finishing material.

This invention is'designed to overcome the defects noted above andobjects of such invention are to provide a novel form of wiperattachment for a coating machine which is so constructed that theindividual portions of the wiping block are independently adjustable soas to compensate for wear,and to maintain a tight and accurate fitbetween all portions of the wiping block and the work as it passes fromthe machine.

Further objects are to provide a very simple attachment which is notexpensive to manufacture, which is easy to secure upon the machine, andwhich may be very readily adjusted as occasion demands to compensate forwear or variations in the work.

An'ernbodiment of the invention is shown in the accompanying drawingsinwhich:

,Fi ure 1 is a sectional view through the attac ent showing it inpositionupon the machine;

Fi re 2 is a sectional view on the line 2- 2 of Figure 1 with parts insection;

Figure 3 is a face view of the attachment corresponding to a section onthe line 3-3 of Figure 1;

Figure 4 is a view similar to Figure 3 showing a different shape ofwiping attachment adapted for operating upon a different form of stripor work.

Referring to the drawings, it will be seen that a conventionallacquering or coating machine has been illustrated, as provided withamam container 1 which holdsthe coating material, such, for instance, aslacquer, and which. is provided with a revolubly mounted aperturedsleeve 2. The sleeve 2 carries a plurality of vanes 3 which dip into thelacquer as the sleeve rotates and which discharge the lacquer throughthe apertures in the sleeve 2 and through the apertures in a stationarysleeve 4: upon the passing strip or work 5. If desired, the vanes'3 maybe provided with a small marginal flange 3' to prevent-the lacquer fromfreely running ofi the edges of the vanes.

The attachment comprises a ring-like member 6 equipped with a pluralityof apertured ears 7 adapted to be bolted to the face of the container ormember 1 of the main machine. Within the ring or holder 6, a

plurality of pressure plates or hearing mem bers 8 are mounted andareguided by the face 9 of the machine and by a face plate 10 removablybolted, as indicated at 11, to the front of the holder 3. The pressureplates 8 may be curved, as shown in Figure 3, and are each provided witha recessed or socketed boss 12 within which the pointed end of anadjusting or set screw 13 seats. The screws 13 are threaded throughbosses 14 formedin the supporting member 6 and are externally adjustableto thus position the bearing plates or pressure members 8.

The pressure members 8, it will be noted,

substantially define a closed figure and within the outline defined bythese pressure members 8 a plurality of independent rubher or otheryielding rubber blocks 15 are positioned. The blocks contact with eachother along slanting faces 16' and are contoured to fit the work orstrip 5, as clearly shown in Figures 2 and 3. Any number of these blocksmay be employed depending on the type of work. For example, in Figure 2,there have been shown four blocks to fit the rectangular strip 5. 'InFigure 3, six blocks have been shown to fit the moulding strip 5'.Obviously, any number of blocks may be employed without departing fromthe spirit of this invention.

It is clear that inasmuch as'the face plate 10 is provided with arelatively large aperture 17, as may be seen from Figure 1, that theoperator can observe any leak that may occur between the passing strip dth 100 for the corresponding block "and may thus maintain a perfectoperative fit between the stripping blocks and the passing work with theutmost facility.

pressure plates or hearing members'22 which It will be seen further thatas wear occurs,- such wear may be taken care of by proper adjustment ofthe appropriate screws 13.

It is clear that the invention is'not limited to the particular contourof the holder for the strip as any type of holder may be employed andany shape or number of blocks depending on the character of the work.For example, the strips previously described and discussed in detailabovev may not be the only type of workhandled by the machine. Forexample, the machine may be adapted for, handling other types of work.It is immaterial so far as the invention is concerned what type of workis handled as the same method of wiping the excess coating from the workis employed. For instance, as shown in Figure 4', a seat 18 isillustrated and a rectangular holder r 19 is employed. The blocks 20 arecontoured to fit the .work and preferably end blocks 21 are employed forthe ends of the work 18. The blocks are adjusted by means of arepositioned correctly and independently by .means of the adjusting screws23, as previously described. elongated block, as indicated at 20 aplurality of such pressure plates are employed and are equipped with acorresponding number of adjusting screws 23.

It will be seen that this invention is applicable to widely differenttypes of lacquering or coating machines and may be adapted to any typeof work handled by the machine with the utmost facility. It-will be seenfurther that all wear can be readily taken care of by proper adjustmentof the screws and also that the stripping blocks may be as' adjusted atthe exact point needed without in any manner interfering with orstopping the operation ofthe machine.

It will be seen further that a material economy is effected by the useof this invention as there is a minimum loss 'of lacquer as theinvention maybe variously embodied determined as claimed.

and as the scope of such invention is to be I claim: 1. An attachment ofthe character dc scribed, including'a housing, a removable housing faceplate closing one side of the and formed with a centrallydisposedopening, a plurality of blocks arranged within the housing formed withslanting contact Obviously, for an immaa (if arcuate form and its innerface of a predetermined contour, a-plurality of substantial arcuatepressure plates bearing against the outer faces of the blocks andadjusting screws threaded through the housing and having en agement withthe pressure plates for adjusting said plates.

2. An attachment of "the character described including a cylindrical-housing, laterally disposed perforated ears at one end of the housing,a face plate removably secured to the other end of the housing andprovided with a centrally disposed opening, a plurality of blocksarranged within the housing and formed with slanting contact faces, theouter portions of said blocks being of arcuate contour and the innerportions of a predetermined contour for engaging the work -passedbetween the plates, said inner portions being tapered away from the worktoward the rear ends of the blocks, a plurality of substantial arcuatepressure plates engage the outer portions of the blocks, and theplurality of adjusting screws threaded through the housing and havingengagement. with the pressure plates for adjusting said plates. Y

3. A stripping attachment for a machine for coating work comprising acylindrical housing having means for attachment to .said machine, aplurality of adjusting screws threaded through said cylindrical housinpressure plates bearing against the inner ends of said screws, aplurality of yielding blocks mounted inside of said pressure plates andadapted to engage the work and strip excess coating therefrom, and aremovable face plate secured to said holder, said blocks having innerwork engaging faces tapered away from the work towards the rear faces ofsaid blocks.

In testimony that-I claim the foregoing I have hereunto set my hand atMilwaukee, in the county of Milwaukee, and State of Wisconsin.

WILLIAM H. BERSSENBRUGGE.

" faces'and each block having its outer face

